| 基于AVR单片机的电磁场监测仪设计 |
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| 引用本文： | 吴建平,李吉,葛青. 基于AVR单片机的电磁场监测仪设计[J]. 中国测试技术, 2011, 37(1) |
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| 作者姓名： | 吴建平 李吉 葛青 |
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| 作者单位： | 成都理工大学核技术与自动化工程学院,四川,成都,610059 |
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| 摘 要： | 设计了一个环境电磁污染监测系统,能够测量环境磁场大小,测量精度可达到6×10-8T。利用磁阻芯片特有的置位/复位功能有效地消除因温度漂移和电路参数漂移等共模信号造成的误差,提高了磁场检测的灵敏度。监测仪器以Atmega16L为控制器,单片集成磁场传感器HMC1052L为检测元件,其输出通过运算放大器LMV358放大,利用Atmega16L单片机模数转换器转换成数字信号,并由LCD显示测量结果。
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| 关 键 词： | 电磁污染 监测 磁场传感器 AVR单片机 A/D转换 |
Instrument design for monitoring electromagnetic field based on AVR MCU |
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| Wu Jian-ping,LI Ji,GE Qing. Instrument design for monitoring electromagnetic field based on AVR MCU[J]. China Measurement Technology, 2011, 37(1) |
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| Authors: | Wu Jian-ping LI Ji GE Qing |
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| Affiliation: | WU Jian-ping,LI Ji,GE Qing(College of Applied Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu 610059,China) |
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| Abstract: | A system for monitoring environment electromagnetic pollution was designed.The instrument could measure the environment electromagnetic radiation and its measurement accuracy reached 0.6 mG.The error caused by common mode signals such as temperature and circuit parameter drift can be eliminated efficiently with the SET/RESET function of HMC,and the sensitivity of detecting the magnetic field was improved.Basing on Atmega16L,the instrument used the sensor HMC1052L as detection component.The output signal of ... |
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| Keywords: | electromagnetic pollution monitoring magnetic field sensor AVR microcontroller A/D conversion |
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